AN IMMERSED BOUNDARY APPROACH WITH MULTIGRID ACCELERATION FOR HIGH ORDER DISCONTINUOUS GALERKIN SOLVERS

Stefano Colombo; Esteban Ferrer; Jiaqing Kou; Eusebio Valero

doi:10.23967/eccomas.2022.019

AN IMMERSED BOUNDARY APPROACH WITH MULTIGRID ACCELERATION FOR HIGH ORDER DISCONTINUOUS GALERKIN SOLVERS

Stefano Colombo, Esteban Ferrer, Jiaqing Kou, Eusebio Valero

Technical University of Madrid

Research output: Contribution to journal › Conference article › peer-review

Abstract

This work describes the implementation of the Immersed Boundary Method (IBM) in a high order discontinuous Galerkin framework for the CFD solver Horses3D [1]. High order schemes are very attractive due to their low numerical dissipation, their capability of providing high-accurate solutions and higher efficiency for a given level of accuracy with respect to low order schemes. However, the generation of high order meshes needed by these schemes is still a bottleneck since it requires a large amount of time. IBM tries to tackle the problem by preserving the high order beneficial properties while avoiding the generation of complex meshes.

Original language	English
Journal	World Congress in Computational Mechanics and ECCOMAS Congress
DOIs	https://doi.org/10.23967/eccomas.2022.019
State	Published - 2022
Externally published	Yes
Event	8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022 - Oslo, Norway Duration: 5 Jun 2022 → 9 Jun 2022

Keywords

High order discontinous Galerkin
Immersed boundaries
P-multigrid
Volume penalisation

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10.23967/eccomas.2022.019

Cite this

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title = "AN IMMERSED BOUNDARY APPROACH WITH MULTIGRID ACCELERATION FOR HIGH ORDER DISCONTINUOUS GALERKIN SOLVERS",

abstract = "This work describes the implementation of the Immersed Boundary Method (IBM) in a high order discontinuous Galerkin framework for the CFD solver Horses3D [1]. High order schemes are very attractive due to their low numerical dissipation, their capability of providing high-accurate solutions and higher efficiency for a given level of accuracy with respect to low order schemes. However, the generation of high order meshes needed by these schemes is still a bottleneck since it requires a large amount of time. IBM tries to tackle the problem by preserving the high order beneficial properties while avoiding the generation of complex meshes.",

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AU - Kou, Jiaqing

AU - Valero, Eusebio

PY - 2022

Y1 - 2022

N2 - This work describes the implementation of the Immersed Boundary Method (IBM) in a high order discontinuous Galerkin framework for the CFD solver Horses3D [1]. High order schemes are very attractive due to their low numerical dissipation, their capability of providing high-accurate solutions and higher efficiency for a given level of accuracy with respect to low order schemes. However, the generation of high order meshes needed by these schemes is still a bottleneck since it requires a large amount of time. IBM tries to tackle the problem by preserving the high order beneficial properties while avoiding the generation of complex meshes.

AB - This work describes the implementation of the Immersed Boundary Method (IBM) in a high order discontinuous Galerkin framework for the CFD solver Horses3D [1]. High order schemes are very attractive due to their low numerical dissipation, their capability of providing high-accurate solutions and higher efficiency for a given level of accuracy with respect to low order schemes. However, the generation of high order meshes needed by these schemes is still a bottleneck since it requires a large amount of time. IBM tries to tackle the problem by preserving the high order beneficial properties while avoiding the generation of complex meshes.

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KW - P-multigrid

KW - Volume penalisation

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SN - 2696-6999

JO - World Congress in Computational Mechanics and ECCOMAS Congress

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T2 - 8th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS Congress 2022

Y2 - 5 June 2022 through 9 June 2022

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AN IMMERSED BOUNDARY APPROACH WITH MULTIGRID ACCELERATION FOR HIGH ORDER DISCONTINUOUS GALERKIN SOLVERS

Abstract

Keywords

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